The Hollywood star battled the disease two years ago, then aged 48, and has been cancer-free for two years

Ben also wrote a blog post about his ordeal on medium.com where he urged people to get tested and said being told he had cancer was like a scene out of a movie.

Sharing the link on his Twitter account, he wrote: "So, I had cancer a couple of years ago and I wanted to talk about it. And the test that saved my life."

Describing the moment his urologist broke the bad news, he said his doctor's voice "literally faded out like every movie or TV show about a guy being told he had cancer… a classic Walter White moment, except I was me, and no one was filming anything at all."

As he stared to process the news, he Googled famous men who had battled prostate cancer and survived and found his co-star Robert DeNiro, politician John Kerry and Homeland's Mandy Patinkin had all gone through the ordeal.

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Ben wrote: "As I learned more about my disease (one of the key learnings is not to Google 'people who died of prostate cancer' immediately after being diagnosed with prostate cancer), I was able to wrap my head around the fact that I was incredibly fortunate.

"Fortunate because my cancer was detected early enough to treat. And also because my internist gave me a test he didn't have to.

"I got diagnosed with prostate cancer Friday, June 13th, 2014. On September 17th of that year I got a test back telling me I was cancer free.

"The three months in between were a crazy roller coaster ride with which about 180,000 men a year in America can identify.